rosenfeld



, NI. s; NILSENFEL Dfxf INTERNAL lcoNIUsTIoN ENGINE. A n APPLICATION FILED VAUG. I''; m3,. l .f

l Y' y' I. ff .Patented Aug. 8,1916;

3 SHEETS-SHEET l..

Witnesses IM. s. RQSEN'FELD.4 Y* INTERNAL COMBUSTION ENGINE.

, APPLICATION FILED AUG. IB, 1913.V 1,193

a 7 8 v 9 u ----:I: ,Il -J i I-- ILL .--I|-I Inventur Y A Horne-yf.

Meunier: s. nOsENrELn, 'or ivionnrs BARN, ING GOMPANY, iNe., OFNEW YORK, N

niezfieiv.

.To all whom may concern Be it `known that I, MAURICE S. ROSEN- "Fern, e citizen of the United States, residing at Morris Park, in' theborou'gh of the Bronx, city.. county, and State of New York, have yinve'nivecl acer-tain new and useful Improvement .in,.Internal-Combustion Engines, of 'which the oliowing is a speciiication.,

invention relates to internal combustion engines and has vfor it Object to provide :inV improved' form of suoli'engineiny which. theimoving parts for controlling the vuidy contents of the explosion space' during' tiie pressure strokes of the piston shell". be positively acting.` i f .Another Aobject of my invention isto avoid "tiieynse of puppet valves; and a further object of my invention is to provide elseif contained enginein which all the moving parts, excent the shaft, ere inc losed. y

These and further objects will more fully appear `from an examination of Athe specifi-j cation, claims., end accompanying drawings teken together or seperately. @My invention 'is .illustrated in the drewings and described. in the epeciiication lnd claims, in which the same parte are' designzitei'i by similar reference. cheracterewin yell of lthe figures. 1 jy Figure iis si horizontal sectional view' teiten on the line 1-1 of Fig. 2.' Fig. 2 is e .longitudinal sectional view taken on the. line @M2 ci' Fig; i. Fig, 3 is e cross'v sectional view teken on the line 3 3 of Figi Fig.' a detail view of a cern.- Fig. 5 isa; de-

tail sectional view Vof `,the follower.: Figs.r4 6 and C ere diagrams of the parte at the `loe-, ginni'ig of 'tlie-fsuction stroke. lFigs. 7 and 7'@ are diagrams of the parte shortly after the beginning of the I compression stroken are diagrams kOf the parts Figs. 8 sind Bil shortly citer the beginning of theWorkingy stroke. Figs. 9 and 9a are diagrams of the. lparte shortly. after the beginning of the scavenging stroke. Fig.` l is' a, sectional view oi elmodifi'ciition. Fig.l 1l is e sectional vier:T of another modification, and 12 is :iview' illustrating thedevelop` ment of the siotl; l

1 nfT` mitm i 'ventionQl.""emp1oy'- v c ncentri cy'lindersi,t'l the? nuten which is`" stetionery, andthein- Specification of Letter! Patent.

' to relatively to the stationary cylinder. The

NEW YORK, AssIGNOR'frO ANELors HOLD- Y., A CORPORATIONOF NEW YORK.

` INTERNAL-COMBUSTION ENGINE.`

Patented Aug. 8; 1916.

'Applicationvfned August 1s, 1913. serial No. tramos.

and 1 confines 'the explosion vto the piston. The pistonjfmoves coexially rwith respectto the movahle element andis connected therev with forimpartmg rotaryl `movement, there `6() stationery cylinder has ports which at stated kintervals communicate with that portion of the ymovable cy in the kdravvin .aridlqaving en. inlet port 2 and Ami linder vabove the" piston andk et other timesy are masked. y y y gs 1 represents `zi stationery cylinder, provided with the coolingA meeilis, out et vport 3. The cylinderis providedr with el ing device yof `any Weil knownform.

within this cylinderl is ak pisto peripheral groove 14 czirriedon the cranl'rarnfis.r

Water jacketed heed which carries@ spark- "Concentrically disposed Within the `cylin- .f der 1 .and in close .contact `therewith is e. movable cylinderit` provided with an inletv port@L and en exhaust port 4b,`zm'd Working n 5. The pis-` ton carries e pin Gto which a piston rod 7 is secured hy means of a kniilrlejoint. The piston rod is connected -to the crank 9 in :if shafts-10 lwhich is journaled .in bearings 11 in a crank case 12. y l y f f The crank bea-ring for .the pietonk rod is provided 'with an linternally threaded socket 13 having a counter bore in its bottom. The lower end of the piston rod hasn peripheral groove 111. Asplit ringl is `pleased irl-the and rests upon the bottom of the socket. A nutl16 whichV surrounds the lower end of the pistonk rod, .isv screwed `down into the socket and restingon thesplit 'ring 15 securely yholdsftlfie kpiston rodin position. f

Slidably mounted Onxthepiston rod kis e sleeve-x17 which is provided on diemetricelly"k Opposite sides with inclined slots lj8-.`18`D and'pleying Within these slots sire' anti-frio 95 tion rollers carried on a pin '19- on the piston rod. The sleeve 17carries,- at'diametrically i Opposite points, depending' ermsZO, 20 and the lower ends 'of these arms have followers f 21, 21 which engage the slots-in cams 22e-22 100 The lower end of the movable,l cylinder 4L is provided .with Oppositely 'disposed de- 3'. each provi-ded with an sa n' rollers.i252r f lo c y. eve; 17,5 ofitsengegement with the 9am dvjlongitudinally of the pist@ i ner ev--nder moves"orosciiletes ingreiation. Wit .it'and the S w there Themovable eieinent controls the one.

Olmi will 1 'is supported upon a ledge 27 on the crank casingr and this ledge is cut away at 2S to allow for the movement of the arms 23.

Referring more particularly to the devices for oscillating the cylinder 4, I will now proceed to describe the cams l connection with the cylinder. The follower 2l is preferably composed of a spindle shaped body 29 and ayroller 3() both rotatably mounted on a pin 31 carried on the lower end of the ar1n20. The follower lies in theslot of; the cam 22 andas the cam is rotated the follower is moved toward and 'away from the center of the cam.

When the piston is in its outermost position after scavenging, as Shown in Figs. 6 and l", the follower will lie in the outside groove 32 of the cam. The momentum of the Hy wheel will turn the engine over to make the suction stroke and the cam will be rotated in the clockwise direction. This will keep the follower in the groove 32 duri ing the complete suction stroke while the crank is moving through an arc of 180D and maintain the movable cylinder with its inlet port coincident with the inlet port ofthe cylinder 1, When the piston has completedthe suction stroke the cam has moved 180 relatively to the follower which stands at a point on the cam diametrically opposite the point it occupies` at the beginning of the suction stroke. Further movement of the ram and crank will start the compression stroke, and at the same time the follower will strike the rise and he shifted through the opening 35 into the inside groove 34. This 1novement towardthe center oi' the fam will draw the sleeve 17 down on the piston rod and the engagement of the slots in the sleeve with the pin on the rod will oscillate the piston and cylinder l and mask both the ports 2 and 3. rlhe `i'ollower will remain in the groove 34 for a complete revolution thereby lneping,r both ports closed during the compression stroke as shown in Figs. 7 and 7 and the working stroke as shown in Figs. 8 and 8,

When the cam has nia'de a complete revo lniion with the follower in the xgroove Ell and the piston has completed its working stroke, the follower will he .shifted hack through the opening 35i into the interna-diate `groove 3G thereby oerillatingr` the cylinder "l hiifck ward to bring its port fl into coincidem-e with. the port Il, while keeping' the peri. 2 closed as shown in Figs. J and il", wherehy 22 and their the up stroke of the piston will scavenge the cylinder.

lVhile I have `shown the engine equipped with twov cams 22 it will be understood that, only one` may be used, it' desired, without departingr from the invention.

In the modification shown in 10 and 1l the movable cylinder is omitted and in its place a Skirt 37 is carried by the piston. Extending through the piston and along the skirt is a port 38 which may be broughtiuto alinement with either the inlet port ii or exhaust port 3 in the lower part of the cylinder 1. The ports 2L and 3' are elon ,gated axially with respect to the cylinder so that the port 3h n'iay communicate with them during'the movement of the piston. The skirt is made long enough to close the port during the up stroke o'lf the piston.

The operation of my improved device is as follows: The piston is at the top of its stroke, see F (S and il, the follower 21 has; just entered the groove 32 in the cam 22 and the port il in the movable cylinder -l `hais been brought into coincidence with the inlet port 2 of the cylinder l.. ll`he crank isgiven a movement in therloekwise direction and the piston descends drawing into the cylinder the proper mixture of vapor and air from the farbnreter.

When the crank has moved 1R17 the follower strikes the rise -l in the groove and is shouted into the innermost Adroeve lll thereby drawing the Sleeve 17 downward :doni: the pieton rod and the engagement oli the cam slots 1S with the pin 1S) will osrillate the piston rod and willi itthe piston and the cylinder 4 Figs. and 7 and close the port 2. The piston will -now make its up stroke compressing the mixture in the op per part oi the cylinder. The charge is then exploded in the well known manner, driving); the piston down, the 'follower rrmaining in the groove lll and holding,r the cylinder l in position to `closc the ports :l and 2l as shown in liigs. H and H".

When the pieton reaches the hellem ol the working stroke. the Afollower will he r.\'` pelled from the groove 1li-l into the irlernle4 diale groove 2lb. this will cause the cylinder to swing bark and disclose thc rellmnfd port l through the port l" whilel still keeping! the port 1! closed. sce Figs. il and El. '1`hc mi mentnm will carry the piston up thereby ex polling; the products of combustion l'roin the cylinder and. when the piston rear-hee' its upper limit, the cylinder -l will he osrillai'ed, h v the follower entering the cam 2h lo close the port il and open the port :l and the operation will be repented.

In arrordalmwith the provisions'ii the patent statute, I have drsrribed the princi-- of my invention tognther with the appaH ple Lo represent the rates, which l now consider liest embmliment thereof', but l. desire lo 13h an oscillating piston, a' secondcylinder niov c `4prising a stationary cylinder having an inlet;I l

second cylinder into register with the inlet j able relatively t0 the vfirst cylind' r, means for oscillatingthe 'second cylinder to govern the port. l v f 2.An internal combustion engine coin`v` prising a stationary cylinder, havinga port,"k an voscillating piston, a second cylinder. dis-k` posed between the stationary cylinder andthe` piston, and means for-oscillating the second cylinder-to governl the po 3. An internal .combustion 'engine coin-k prisinga stationary cylinder, having port, an oscillating piston,v olld'cylderdisposed between the stationary .illdel and* the piston, .and means *for oscillating the. second 'cylinder to goveiiitieport i 1 l #1.Aii internal combustion engine coinprisirig a statioi'iary cylinder having .inlet andIexhaust poi-ts, an oscillating piston,ia second cylinder having a eport, and ineens ,for oscillating the second cylinder to govern both the inlet andl exhaust ports, g

5. An internal ccmbii'tion engine. coin prisilng a' stationary cylinder having inlet and exhaust ports, a second cylinder, 'a piston working lin rthe secondA cylinder, ineans for oscillating the piston, and connections between the Second cylinder and vpiston whereby the former is `oscillated to govern -the ports. c

, 6. An internal combustion enginel coinprsiiig a stationary cylinder Ahaving .inlet i, and exhaust ports, anl oscillating piston, 'a piston rod, a crank shaft, a second'cyliiider carried between tliestationary cylinder, and the` piston and connections between thegcrank shaft and the secondv cylinder foroscillating the latter to govern the ports. i y 7 An internal combustion engine coinand anexhaiist port,an oscillatingpiston, alv second cylinder having a port and being dis-,l posed between `the first cylindery and the vpiston, a cani, and connections between the sec` ond cylinder andthe cani' for oscillating the second cylinder and bringing the port in the porton the suction stroke`of the piston and with the eiiliaustport on the scavenging stroke. f i

8. An internal combustion-engine conipri'siiig a stationary cylinder having inlet` andoiitlet ports, a reciprocating piston, a` second cylinder'carriedy between the first cylinder and the piston, a piston rod, aA crank shaft, a cam on the crank shaft, connectioiis between lthe cani and the piston andy outlet ports, A v

:oscillating cylindena crank shaft and'cone piston.

rod for oscillating' the piston and connec-' 9. An' internal combustion ,engine 'coin-,

prisingt .a-y stationary cylinder'. having Qinlet an oscillating piston, an

nections between ,the Ashaft and oscillating cyliinder wherebyy theA inlet port is opened during the suction stroke, both inle't and exhaust p o'its are {closed-during the conn,-

pression and working strokes" and the ,inlet poi-t closed andthe outlet the scavenging stroke. l, l r lO. An internallcombnstion engine conip'rising stationary cylinder having inlet andexliaust ports, a piston, apiston rod, a

i sleeve ontlie piston rod, shaft, a cam .on

the shaft, means for engaging the sleeve with the cam, whereby the sleevewill be reciprocated means" whereby reciprocating motion of thesleeve will impart oscillatory rmovementto the piston rod,`a movable cyl-5 inder disposed lbetween thek first' cylinder and the piston and7 connections'b'etween the pistonrod and movable cylindenfor rotating the latter,- i f 1l. An internal combustion lengine coinprising cylinder, inlet and. exhaust ports in the cylinder, anoscillating, reciprocating piston', and means, stationary relatively to fthe reciprocations of the piston, operated by the piston for. opening andclosiiig the pf'prts in 11,2. An internalcombustionr engine coinlprisingfa cylinder, inlet andfexhaiist poi-ts in 'thecylindeig an oscillating, ieriiiii'rocating piston,"4 means, stationary relatively to the reciprocations `of the' piston, iiiovable with ,the piston for opening and closing. the poits in tini'ewith the movements ot the piston. l

`An internal rcombustion engine ycoinprising a' cylinder, inlet and'exfliaiist ports 511. iiijth'ecylinden an oscillating, reciprocating piston, a device 'oscillatingwithtlie; piston aiidfeiidaging the walls of the cylinder and ,vor moving' the device and pistonfor :i br n l the movements ot the piston. l

14. An` internal combustion engine coin- [and closing thei'iorts` in time with oplened during n 'prisingl a stationary cylinder, inlet and exhaust ports in the cylinder, a piston, a inov-d able cylinder ybetween tl'ieffiist cylinder and the piston, connections between the secondv cylinder and the piston, a crank, a plston rod connecting the `piston with thecrank, a slotted -sleeve on the piston rod, a pin on the rod engaging the slot, and connections between 4the crank and the sleeve for moving rtbc latter and oscillating the piston and secoud cylinder,v f

1,5. An internal combustion' engine coiny prising a stationary cylinder, inlet andexhaust ports n the cylinder, a piston, a crank, a movable cylinder disposed between the first cylinder and the piston, slots in the second cylinder, rollers earriedon the pis- 45 ton for engaging the slots, a piston rod connecting the pieton with the crank, n slotted sleeve movable on the piston rotL-u pin .on the pistonV `rod engaging the' slot" in the sleeve, a follower carried on the Jsleeve and 140 engaging a cam, said cam being niountedon the crank whereby the piston and second cylinder may oscllute relatively to the first cylinder during the reeiproeations of the piston. i

This fspecicaton signed and witnessed 1h this 16th day of August, 1913.

MAURICE S. BOSENFELD.

Witnesseis':

i SAMUEL J. SAMPSQN, A314mm'mia SAMPSQNV.`. 

